.App {
  text-align: center;
  margin-top: 100px;
}

.App-logo {
  animation: App-logo-spin infinite 20s linear;
  height: 40vmin;
  pointer-events: none;
}

.App-header {
  background-color: #282c34;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: calc(10px + 2vmin);
  color: white;
}

.App-link {
  color: #61dafb;
}

@keyframes App-logo-spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.button-group a {
  display: inline-block;
  width: 50px;
  height: 20px;
  text-align: center;
  margin:0 10px 0 0;
  border:1px solid #e5e5e5;
  font-size: 14px;
}


li {
  width: 180px;
  height:30px;
  line-height: 30px;
  margin:auto;
  list-style: none;
  text-align: left;
}
li.activeItem {
  text-decoration: line-through;
}
.btn-del {
  display: none;
}
.node:hover .btn-del{
   display: inline-block;
  float: right;
  margin-left: 30px;
  color:#cc9a9a;
  font-size: 14px;
  cursor: pointer;
}
.btn-add {
  margin-left: 5px;
}